Herman J J, Brenner J K, Colten H R
Science. 1979 Oct 5;206(4414):77-8. doi: 10.1126/science.113872.
Imidazoleacetic acid, a product of the action of histaminase (E.C. 1.4.3.6) on histamine, inhibits specific release of histaminase from human peripheral blood granulocytes with an inhibition constant between 5 X 10(-9)M and 1 X 10(-8)M. Hence, modulation of enzyme release is indirectly mediated by the activity of the enzyme.